What do third-party launchers do, and does Nova pose any security risks? I've never had to install anything like that before, but the appearance changes in Lollipop have given me a shattering headache since my update this morning. Those folders are a big part of that, so I'm looking for a solution. Is Nova safe, and what does it do?
Thanks!
Android 5.0.1
Samsung-SGH-I337
Galaxy S4